Lost In Space?

November 18, 1994

A `Trek' primer For the uninitiated, the universe of Star Trek can be a confusing place, where Romulans and Vulcans look suspiciously alike and the words ``I'm running a level-three diagnostic'' make no sense. Though the universe can't be explained in a few words, the different Star Trek series can:

* ``Star Trek,'' now known as original or classic Star Trek, ran from 1966 to 1969. Set in the 23rd century, it featured Capt. James T. Kirk and his first officer, Mr. Spock, leading the crew of the starship USS Enterprise.

* ``Star Trek: The Next Generation'' came along in 1987, set in the 24th century. The new Enterprise was much bigger than its predecessor; its crew included Capt. Jean-Luc Picard and his first officer, William Riker. Also on board were several non-human officers: an android named Data, a Klingon named Worf, and an empathic half-Betazoid named Deanna Troi. ``Next Generation'' ran for seven seasons.

* ``Star Trek: Deep Space Nine'' began in January 1993. It's set in the same time period as ``Next Generation,'' at a space station orbiting a planet that until recently was occupied by the nasty Cardassians. The space station commander is Starfleet officer Benjamin Sisko, but the station's crew, residents and visitors include all sorts of aliens. Some visitors come through a nearby ``wormhole'' that transports ships to a distant part of the galaxy.

* ``Star Trek: Voyager'' is due to begin in January. It will be set aboard the USS Voyager, in the same time period as ``Deep Space Nine,'' but reports suggest the starship will be far away from the rest of the fleet.